When configuring an ACL on a router, you can specify a unique number or name to identify the ACL. Once a named ACL is created, it cannot be modified. You can only delete the named ACL and reconfigure it.

The statement is incorrect. While the first part is true—that you can use a unique number or name to identify an ACL—the second part is false. On Huawei devices running the Versatile Routing Platform (VRP), named ACLs are designed to be flexible and can be modified after they have been created. An administrator can enter the configuration view of a specific named ACL to add new rules, delete existing rules, or change the description of a rule without needing to delete and recreate the entire ACL. This granular modification capability is a primary advantage of using named ACLs over some implementations of numbered ACLs.

The option "True" is incorrect because it makes a factually inaccurate claim about the modification capabilities of named ACLs in Huawei's VRP. The assertion that a named ACL "cannot be modified" and must be deleted and reconfigured is false. Huawei's VRP provides commands to enter a named ACL's view and manage its individual rules (Access Control Entries) directly.

1. Huawei HedEx Documentation for VRP: In the official configuration guides for Huawei routers and switches

the process for configuring ACLs is detailed. The documentation explicitly shows that after creating a named ACL using a command like acl name advanced

the administrator enters a specific ACL view. Within this view

commands such as rule [ rule-id ] { permit | deny } ... are used to add new rules

and undo rule [ rule-id ] is used to delete specific rules. This demonstrates the capability to modify the ACL without complete reconfiguration.

Source: Huawei Enterprise Support

NetEngine 8000 M8 V800R021C00SPC100 Configuration Guide - Security - ACL Configuration

Section: "Configuration Files > ACL Configuration > Configuring a Named Advanced ACL". The procedure details entering the ACL view and adding/deleting rules

which constitutes modification.

2. Huawei HCIP-Datacom-Core Technology V1.0 Training Material: The official courseware for the H12-821 exam covers ACL configuration. It presents named ACLs as a more manageable alternative to numbered ACLs

highlighting the ability to add or delete rules logically and without re-creating the entire list.

Source: HCIP-Datacom-Core Technology V1.0 Training Material

Module: "ACL Principles and Configuration"

Sub-section: "Named ACL Configuration". This section typically includes lab exercises and command examples showing the modification of an existing named ACL by adding and removing rules. For example

it shows entering [Huawei-acl-adv-testacl] view and using rule 15 permit ... to add a new rule between existing rules 10 and 20.